So I restarted my Eclipse RCP application after I upgraded my Ubuntu, and it seems that the Main menu has disappeared!
Does anyone know if this is the fault of the new Unity interface or something in SWT?
As @Geniedesalpages mentions, it's the interaction between eclipse events and the Unity menu. https://bugs.eclipse.org/bugs/show_bug.cgi?id=330563
There should be updates to unity to allow eclipse to retain its old style menu bar.
PW